JP2007513804A - Method for forming graphic elements on metal-coated compacts by point laser radiation - Google Patents
Method for forming graphic elements on metal-coated compacts by point laser radiation Download PDFInfo
- Publication number
- JP2007513804A JP2007513804A JP2006543392A JP2006543392A JP2007513804A JP 2007513804 A JP2007513804 A JP 2007513804A JP 2006543392 A JP2006543392 A JP 2006543392A JP 2006543392 A JP2006543392 A JP 2006543392A JP 2007513804 A JP2007513804 A JP 2007513804A
- Authority
- JP
- Japan
- Prior art keywords
- laser radiation
- points
- molded body
- metal
- generated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/24—Ablative recording, e.g. by burning marks; Spark recording
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/361—Removing material for deburring or mechanical trimming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/007—Marks, e.g. trade marks
Abstract
成形体に線状のグラフィック要素を形成させる方法において、成形体を金属で被覆し、被覆部を同径の点および／または相互間隔が等しい点の形態で剥ぎ取るようにしてレーザー放射によりグラフィック要素を生成させる。 In a method of forming a linear graphic element on a shaped body, the shaped body is coated with metal, and the covering portion is stripped off in the form of points having the same diameter and / or points having the same distance from each other. Is generated.
Description
本発明は、成形体に線状グラフィック要素を形成させる方法に関するものである。 The present invention relates to a method for forming a linear graphic element on a molded body.
成形体とは、種々の目的のために使用されるたとえば操作要素、装飾要素或いは表示要素である。線状グラフィック要素とは線、直線、或いは閉じた図形（たとえば長方形）等である。この図形により、文字を取り囲むようなデザインを得ることもでき、よって視覚的に文字を表現することができる。 The molded body is, for example, an operation element, a decoration element, or a display element used for various purposes. The line graphic element is a line, a straight line, a closed figure (for example, a rectangle), or the like. With this figure, it is possible to obtain a design that surrounds the character, and thus it is possible to visually express the character.
これに関連して、特許文献１から、基体上に被着させた遮光層をレーザー放射により除去してシンボルを生成させるようにした、操作要素、装飾要素または表示要素の製造方法が知られている。この場合遮光層は完全に剥ぎ取られる。基体上には、視覚的にはっきり識別できる被覆領域と非被覆領域とが存在する。レーザーは被覆部を迅速且つ完全に除去する工具として使用されるにすぎない。被覆部の剥ぎ取りが迅速であればあるほど加工時間が短くなるので、加工時間を短くするには被覆部をエネルギー集中的に加工しなければならず、したがって基体が損傷する恐れがある。その結果、シンボルが視覚的に不均一な印象になる。 In relation to this, a method for manufacturing an operating element, a decorative element or a display element is known from Patent Document 1 in which a light shielding layer deposited on a substrate is removed by laser radiation to generate a symbol. Yes. In this case, the light shielding layer is completely removed. On the substrate, there are a coated region and an uncoated region that can be clearly identified visually. The laser is only used as a tool to remove the coating quickly and completely. Since the faster the stripping of the covering portion is, the shorter the processing time is. In order to shorten the processing time, the covering portion must be processed in an energy-intensive manner, and the substrate may be damaged. The result is a visually uneven impression of the symbols.
ライティング状態が好ましくない場合でも、特に暗闇でもグラフィック要素を視認できなければならないような場合には、上記の視覚的に悪い印象はさらに増幅される。操作要素におけるこの種のデザインは「ナイトデザイン」として当業者に知られている。このため前記特許文献１からは、基体を光源で後方から照射して、被覆していない箇所から光を放出させることが知られているが、この被覆していない領域で基体が損傷していると、視覚的にはしみのような印象を及ぼす。 Even when the lighting state is not preferable, especially when the graphic element must be visible even in the dark, the above-mentioned visually bad impression is further amplified. This type of design in the operating element is known to those skilled in the art as a “night design”. For this reason, it is known from Patent Document 1 that the substrate is irradiated from behind with a light source to emit light from an uncoated region, but the substrate is damaged in this uncoated region. And visually gives the impression of a blot.
本発明の課題は、上記方法を改善して、照明状態が異なってもグラフィック要素に一様な外観を持たせ、迅速で加工安定な製造を可能にすることである。 An object of the present invention is to improve the above method so that the graphic elements have a uniform appearance even under different lighting conditions, enabling a rapid and stable production.
上記の課題は請求項１の構成により解決される。 The above problem is solved by the structure of claim 1.
成形体を直接金属で被覆する。前記特許文献１で設けられているような、成形体と被覆部との間で何らかの性質を持った中間層は必要ない。グラフィック要素は被覆部をピクセル状に剥ぎ取るレーザー放射により生成させる。常に点のみが剥ぎ取られる。このために必要なエネルギーは極めて小さく、よって基体が損傷する危険も極めて少ない。個々の点の相互間隔が等しく、且つ個々の点が同じ径を持っていれば、すべての照明条件でグラフィック要素の一様な視覚的印象が得られ、その結果特に優れた視認性、判読性が得られる。 The molded body is directly coated with metal. There is no need for an intermediate layer having any property between the molded body and the covering portion as provided in Patent Document 1. The graphic element is generated by laser radiation that strips the covering into pixels. Only the points are always stripped off. The energy required for this is very small and therefore the risk of damage to the substrate is very low. If the distance between the individual points is equal and the individual points have the same diameter, a uniform visual impression of the graphic elements can be obtained in all lighting conditions, resulting in particularly good visibility and legibility Is obtained.
生成される個々の点の径とその次の点との間隔は広範囲で可変である。特に好ましい視覚的印象を得るため、個々の点は人間の目でほぼ３０ｃｍの通常の読み取り間隔で識別できない。 The distance between the diameter of each generated point and the next point is variable over a wide range. In order to obtain a particularly favorable visual impression, individual points cannot be identified with a normal reading interval of approximately 30 cm with the human eye.
本発明による方法により、面の印象も生じさせることができる。このため、レーザー放射により生成させる点を面状に等間隔で配置させる。本発明による方法のこの実施態様は、印刷ピクセルを密に均等に配置することにより同様に面の印象を得るようにした新聞の印刷と同様である。 Surface impressions can also be produced by the method according to the invention. For this reason, the points generated by the laser radiation are arranged in a plane at regular intervals. This embodiment of the method according to the invention is similar to the printing of newspapers in which the printing pixels are likewise arranged in a dense and even manner so as to obtain an impression of the surface.
したがって、生成される点の充填密度を変化させることによって、明度の異なる面をも生成させることができる。 Therefore, it is possible to generate surfaces with different brightness by changing the packing density of the generated points.
前記特許文献１と同様に、グラフィック要素を後方から照射してもよい。このため成形体は透明な材料から成り、被覆部とは逆の側を照射される。特殊な色彩的印象は、たとえば、成形体が特別な彩色を持ち、無色光で照射されることによって得ることができ、或いは、成形体自体が無色で、所望の色で照射することによって得ることができる。被覆部を剥ぎ取る際に成形体のプラスチック材料がどの点でも均等に加工されることによっても色彩効果が生じる。照射強度によっては、個々の炭素原子を露出させることにより、落射光および透過光で視認できる、グラフィック要素のブロンズ効果が得られる。 Similarly to the aforementioned Patent Document 1, the graphic element may be irradiated from the rear. For this reason, a molded object consists of a transparent material, and the side opposite to a coating | coated part is irradiated. A special chromatic impression can be obtained, for example, when the molded product has a special color and is irradiated with colorless light, or obtained by irradiating the molded product itself with a desired color. Can do. A color effect is also produced when the plastic material of the molded body is uniformly processed at any point when the covering portion is peeled off. Depending on the irradiation intensity, the exposure of individual carbon atoms can result in a bronze effect of the graphic element that is visible with incident and transmitted light.
このブロンズ効果はその強度の点で、すなわち反射率と関連して色着け率の点で可変であり、且つレーザー放射の強度に依存している。これにより被覆部は点状に剥ぎ取られる。点の密度および大きさによっては表面の調整可能なつや消し効果が得られる。さらに、放射の強度に依存して可変な色着け効果が生じる。 This bronze effect is variable in terms of its intensity, i.e. in terms of the tinting rate in relation to the reflectivity, and is dependent on the intensity of the laser radiation. Thereby, a coating | coated part is stripped off in dot shape. Depending on the density and size of the spots, an adjustable matting effect of the surface can be obtained. Furthermore, a variable coloring effect occurs depending on the intensity of the radiation.
無色の成形体の場合には、異なる色の照明により色が異なるシンボル、文字等を得ることができる。成形体の材料を透明なもの、乳濁色のもの、或いは不透明なものに選択すれば、加工点の配置および形態との関連で種々の視覚効果を得ることができる。 In the case of a colorless molded body, symbols, characters and the like having different colors can be obtained by illumination of different colors. If the material of the molded body is selected to be transparent, milky, or opaque, various visual effects can be obtained in relation to the arrangement and form of the processing points.
成形体の被覆部をシルバーメタリックに光沢があるように実施すれば、グラフィック要素は落射光の場合には通常の成形体よりも暗くなり、透過光の場合には明るくなる。これにより広範囲の多面的な形態が可能になる。 If the covering portion of the molded body is made so that the silver metallic is glossy, the graphic element becomes darker than the normal molded body in the case of incident light and brighter in the case of transmitted light. This allows a wide variety of multi-faceted configurations.
Claims (7)
成形体を金属で被覆すること、被覆部を点状に剥ぎ取るレーザー放射によりグラフィック要素を生成させることを特徴とする方法。 In a method of forming a linear graphic element on a molded body,
A method for producing a graphic element by coating a molded body with a metal, and laser radiation for stripping off the covering portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10358313.0A DE10358313B4 (en) | 2003-12-11 | 2003-12-11 | Method for producing a graphic element |
| PCT/EP2004/012511 WO2005061170A1 (en) | 2003-12-11 | 2004-11-05 | Method for producing a graphical element on a metal-coated moulded body by point laser irradiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2007513804A true JP2007513804A (en) | 2007-05-31 |
Family
ID=34683339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006543392A Pending JP2007513804A (en) | 2003-12-11 | 2004-11-05 | Method for forming graphic elements on metal-coated compacts by point laser radiation |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7649154B2 (en) |
| EP (1) | EP1699590A1 (en) |
| JP (1) | JP2007513804A (en) |
| CN (1) | CN1890050A (en) |
| DE (1) | DE10358313B4 (en) |
| WO (1) | WO2005061170A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8585956B1 (en) | 2009-10-23 | 2013-11-19 | Therma-Tru, Inc. | Systems and methods for laser marking work pieces |
| DE102015208560A1 (en) | 2015-05-08 | 2016-11-10 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for individualizing interior and / or exterior components of a motor vehicle by means of a labeling laser |
Citations (3)
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| JPH05318148A (en) * | 1992-05-26 | 1993-12-03 | Central Glass Co Ltd | Pattern forming method of light transmitting material by laser beam |
| JP2001334374A (en) * | 2000-05-26 | 2001-12-04 | Matsushita Electric Works Ltd | Method of controlling laser beam decoration on resin molding and device therfor |
| JP2003205375A (en) * | 2002-01-09 | 2003-07-22 | Shiseido Co Ltd | Method of forming engraved letter on label with laser beam |
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2003
- 2003-12-11 DE DE10358313.0A patent/DE10358313B4/en not_active Expired - Lifetime
-
2004
- 2004-11-05 JP JP2006543392A patent/JP2007513804A/en active Pending
- 2004-11-05 WO PCT/EP2004/012511 patent/WO2005061170A1/en active Application Filing
- 2004-11-05 EP EP04797632A patent/EP1699590A1/en not_active Withdrawn
- 2004-11-05 CN CNA2004800366224A patent/CN1890050A/en active Pending
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2006
- 2006-06-12 US US11/450,438 patent/US7649154B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05318148A (en) * | 1992-05-26 | 1993-12-03 | Central Glass Co Ltd | Pattern forming method of light transmitting material by laser beam |
| JP2001334374A (en) * | 2000-05-26 | 2001-12-04 | Matsushita Electric Works Ltd | Method of controlling laser beam decoration on resin molding and device therfor |
| JP2003205375A (en) * | 2002-01-09 | 2003-07-22 | Shiseido Co Ltd | Method of forming engraved letter on label with laser beam |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10358313B4 (en) | 2015-10-22 |
| US7649154B2 (en) | 2010-01-19 |
| DE10358313A1 (en) | 2005-07-21 |
| WO2005061170A1 (en) | 2005-07-07 |
| EP1699590A1 (en) | 2006-09-13 |
| CN1890050A (en) | 2007-01-03 |
| US20060286307A1 (en) | 2006-12-21 |
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